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The 5v current available depends on how the MEGA is powered, what board you are using the connect to the network, and how many ds18b20 sensors you have on the one-wire network. 250ma is a good power budget number to keep in mind. Thermistors don't really draw any significant power, so you...

I pondered the same question when I built, and ultimately I ended up with a side mount as low as possible (about 1.5 gallons in a 20 gallon pot). Having run it this way for 4+ years now, I have zero regrets about its placement.

Looks like the certificate expired on the license server the older versions used. You are doing the right thing in upgrading for a quick resolution.

@dubfitz What version of BC are you running?

Those functions are there to remove whitespace and non-numeric characters that would break the process of converting the string to a number. The reason I went that way was to natively accept whatever displayed units the user operated in (defined in Beersmith or other program), vs the BeerXML...

What is in the config backup folder under Documents/BruControl?

Apologies, but I'm not following on what you want to achieve here. The newline or linefeed (\n) character is used in many applications, but if you are trying to import into Excel, it typically looks for a CR LF (\r\n) to signify the next row.

Put a \n in your string for a new line.

Were your hop additions coming in out of order from NodeRed to BruControl? The hops should already be in (time) order coming from the beerxml file, and parsed in order as its sent to BruControl. The 8 hop limit in the NR flow is arbitrary and could be increased to whatever number is desired.

What specific model of the ESP-32 series are they? Were they working before yesterday?

Is this serial communication? If so, what does it do with ethernet?

For the pressure sensor, power it then put your multi-meter positive probe on the signal wire and negative to ground. Be gentle but you should get a voltage change when you touch the sensor membrane. The proportional valve will be more problematic unless you have a variable power supply that...

Just apply 24v to the open/close contacts according to your build pinout.

If your production is down and you are reliant on this system, I would definitely just flash the latest 45 firmware and get back running. To move to 46 requires some changes to your BC configuration file that I presume you don't have the time to deal with right now.

No, we are trying to eliminate potential intrusion of AC signals on the DC - bus. Simply tie a wire between all of your DC - terminals and see if that eliminates your EMI you are seeing in your temperature probes.

Yes it does, your EMI may be induced via something noisy on the AC ground. Try connecting the 2 DC - together and isolating them from the AC ground.

Is your DC - bus connected to your AC ground?

Can you ping the IP of the ESP32 from a computer other than BC?

Hmm, I don't see anything specifically out of the ordinary there. I'm going to guess that there is no scripting in play here, but there is something definitely messing with the PID calculation. I suppose its possible there was a bad firmware flash, so you could try a re-flash OTA and see if it...

Oh sorry, yeah 5 should be the pin you want. The PID calculation occurs in the ESP32. Can you show me your config for the temperature sensor that is being referenced in the PID config, 'RTD Temp Bottom'? I'm interested in any calibrations you have on that temp input as well. Also, please...